What is the role of producers in an ecosystem?

• They consume other organisms for energy.

• They produce their own food through photosynthesis.

• They decompose dead matter.

• They only eat plants.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following is a characteristic of herbivores?

• They only eat animals.

• They eat both plants and animals.

• They only eat plants.

• They feed on dead organisms.

What is the primary role of decomposers in an ecosystem?

• They produce their own food.

• They feed on primary consumers.

• They break down dead plant and animal matter.

• They are the last consumer in a food chain.

Tags

NGSS.MS-LS2-3

In a food chain, what do secondary consumers feed on?

• Producers

• Primary consumers

• Tertiary consumers

• Decomposers

Tags

NGSS.MS-LS2-3

What happens to matter in an ecosystem?

• It is lost as work and heat.

• It cycles through the ecosystem and is never lost.

• It is consumed by top consumers.

• It is only found in producers.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is a trophic level?

• A distinct level of feeding within an ecosystem

• A type of habitat

• A measure of biomass

• A type of food web

Tags

NGSS.MS-LS2-3

What does a food web represent?

• A single food chain

• A group of two or more food chains that are intertwined

• A measure of energy flow

• A type of ecosystem

Tags

NGSS.MS-LS2-3

What do arrows in a food web indicate?

• The direction of water flow

• The flow of energy

• The growth of plants

• The movement of animals

Tags

NGSS.MS-LS2-3

What happens if one species is removed from a food web?

• The ecosystem remains stable

• The stability of the ecosystem is affected

• New species are introduced

• The food web becomes more complex

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is biomass?

• The mass of dry, organic matter in a given habitat

• The number of species in an ecosystem

• The amount of water in a habitat

• The energy flow in a food web